MagnaFlow Performance Exhaust Muffler

2011–2025 Vehicle Applications / Universal Fitment with 2.5-inch Inlet/Outlet

Part #: 12640

Overview

The MagnaFlow 6-inch Round Straight-Through Performance Exhaust Muffler 12640 is designed to enhance your vehicle's exhaust sound and improve overall performance. Crafted with precision and built for enthusiasts who seek a deep, aggressive exhaust note combined with dyno-proven gains, this muffler is a versatile upgrade for a wide range of vehicles. Its lightweight construction and premium satin finish make it an attractive addition to any performance-oriented build.

Whether you're looking to boost horsepower, improve exhaust flow, or simply upgrade your vehicle's sound profile, this muffler offers a straightforward solution. Its universal 2.5-inch inlet and outlet diameter allows for flexible installation options, making it suitable for various applications and vehicle models. The straight-through design ensures minimal backpressure, helping your engine breathe more freely and supporting increased power output.

Key Features

This performance muffler features a durable, weight-optimized 6x6x27-inch body crafted from high-quality materials to withstand the rigors of daily driving and spirited performance. The satin finish not only provides a sleek, professional look but also offers resistance to corrosion and heat. Its straight-through, free-flowing design promotes optimal exhaust scavenging, resulting in improved throttle response and a more aggressive exhaust tone.

• Heavy-duty, lightweight construction with a 6x6x27-inch body for durability and performance
• Reversible, universal 2.5/2.5-inch inlet/outlet configuration for flexible installation
• Premium satin finish enhances appearance and corrosion resistance
• Straight-through, free-flowing design for improved exhaust flow and reduced backpressure
• Dyno-proven performance gains in horsepower and torque
• Compatible with a wide range of vehicle makes and models, thanks to its universal design
• Ideal for enthusiasts seeking a deep, aggressive exhaust sound and enhanced performance
• Easy to install with professional welding or clamp-on options

Construction & Design

The MagnaFlow 12640 muffler is engineered with a high-quality, stainless steel body that ensures longevity and resistance to corrosion. Its round, straight-through design features a perforated core surrounded by a high-flow packing material, which helps produce that signature MagnaFlow sound while maximizing exhaust flow. The muffler's reversible inlet/outlet configuration provides installation flexibility, accommodating various vehicle setups and spacing requirements.

Designed with precision manufacturing techniques, including TIG welding and mandrel-bent tubing, this muffler guarantees a consistent fit and optimal performance. Its lightweight construction reduces overall vehicle weight, contributing to better handling and efficiency. The satin finish not only adds a sleek aesthetic but also provides a protective barrier against the elements, ensuring your upgrade looks great and performs reliably over time.

Installation & Fitment

This universal performance muffler is designed for straightforward installation, typically requiring professional welding or clamp-on mounting. Its reversible inlet/outlet configuration allows for versatile placement and compatibility with various exhaust systems. No cutting or drilling is necessary for most applications, but some custom fitting or fabrication may be required depending on your vehicle's specific setup. It is recommended to have a qualified technician perform the installation to ensure optimal performance and safety.

• Reversible 2.5-inch inlet/outlet for flexible fitment
• Designed for professional welding or clamp-on installation
• No cutting or drilling required in most cases

What's Included

• MagnaFlow 6-inch Round Straight-Through Performance Muffler 12640
• All necessary clamps and hardware for installation
• Installation instructions (if applicable)

Ideal For

• Performance enthusiasts seeking a deep, aggressive exhaust tone
• Drivers looking to improve exhaust flow and support increased horsepower and torque
• Vehicle owners wanting a durable, corrosion-resistant muffler with a sleek satin finish
• Custom car builders and tuners aiming for versatile, high-quality exhaust upgrades